Your 'energy conversion 1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** Your optional message or comment: **
** How far and through what angle did the block displace on a single trial, with rubber band tension equal to the weight of two dominoes? **
1.4cm,0
1.4cm is the amount of distance the dominos moved when i let go of the string
** 5 trials, distance in cm then rotation in degrees, with rubber band tension equal to the weight of two dominoes: **
2.2cm,0
1.8cm,0
2.1cm,0
1.9cm,0
1.8cm,0
the dominos moved in a straight line towards the anchor.
** Rubber band lengths resulting in 5 cm, 10 cm and 15 cm slides: **
7.3cm,7.6cm,7.8cm
dominos did you turn as they were released so there was not any differnce in degrees.
these numbers were the lenghts that the rubber band that was attached to a fix object was stretched. the more force applied to the rubber band the more the dominos traveled.
** 5 trials, distance in cm then rotation in degrees, with rubber band tension equal to the weight of four dominoes: **
4.9cm,20deg;
8.6cm,15deg;
6.1cm,0deg;
6.5cm,0deg;
7.8cm,0deg
I found out that the degrees changes are a result of how i let go of the string the lenght difference are human error and or the rubber bands
** 5 trials, distance in cm then rotation in degrees, with rubber band tension equal to the weight of six dominoes: **
10.9cm,10deg
10.5cm,5deg
10.4cm,10deg
10.5cm,0deg
10.2cm,0deg
the results are constistant with each other.
** 5 trials, distance in cm then rotation in degrees, with rubber band tension equal to the weight of eight dominoes: **
2.7cm,5deg
3.2cm,5deg
3.0cm,0deg
3.2cm,0deg
2.9cm,0deg
all the results were constistant with one another.
** 5 trials, distance in cm then rotation in degrees, with rubber band tension equal to the weight of ten dominoes: **
4.6cm,0deg
4cm,0deg
5cm,5deg
4.5cm,0deg
4.9cm,0deg
when doing these experiments it would make it easier to use engineering rule graph paper that is the green graph paper with different size boxes in order to be more accurate in measuring
** Rubber band length, the number of dominoes supported at this length, the mean and the standard deviation of the sliding distance in cm, and the energy associated with the stretch, for each set of 5 trials: **
5.59ecm,1.96,.1817cm,0.37ncm
6.93cm,6.78,1.45cm,5.15ncm
7.2cm,10.5,0.254cm,11.97ncm
6.5cm,3.58,1.44cm,5.44ncm
6.65cm,4.6,0.393cm4,12.63ncm
i multiplied .19 by the number of dominos and then multiplied by the mean of the length
** Slope and vertical intercept of straight-line approximation to sliding distance vs. energy, units of slope and vertical intercept, description of the graph and closeness to line, any indication of curvature: **
the vertical intercept -2.7, the slope is 1.53n/cm
slope would be n/cm and vertical intercept would be ncm
the points correspond with a linear relationship
** Lengths of first and second rubber band for (first-band) tensions supporting 2, 4, 6, 8 and 10 dominoes: **
slope1.3,y intercept -2.3
n/cm,ncm
the data points are far a part and make a straight line.
** Mean sliding distance and std dev for each set of 5 trials, using 2 rubber bands in series: **
5.95cm,7.2cm
6.93cm,7.9cm
7.2cm,8.5cm
6.5cm,7.4cm
6.65cm,7.8cm
** Slope and vertical intercept of straight-line approximation to sliding distance vs. energy, units of slope and vertical intercept, description of the graph and closeness to line, any indication of curvature: **
1.38,.13
10.64,.75
13.2,1.39
5.42,.408
5.12,.2775
** 1-band sliding distance and 2-band sliding distance for each tension: **
1.96,1.38
6.78,10.64
10.5,13.2
3.58,5.42
4.6,5.12
** Slope and vertical intercept of straight-line approximation to 2-band sliding distance vs. 1-band sliding distance, units of slope and vertical intercept, description of the graph and closeness to line, any indication of curvature: **
slope 1.4 ,yintercept-2.5
n/cm,ncm
straight line
** Discussion of two hypotheses: 1. The sliding distance is directly proportional to the amount of energy required to stretch the rubber band. 2. If two rubber bands are used the sliding distance is determined by the total amount of energy required to stretch them. **
i believe this hypothese is proven by the work i have done due to the fact the harder i pulled the faller the blocks moved.
** How long did it take you to complete this experiment? **
4 hours
** Optional additional comments and/or questions: **
Good work on this experiment.